Silo-door fastener.



K. KLEV-EN.

SILO DOOR PASTBNBR. APPLIUATION FILED JULY 1, 1908.

921 122. Patented May 11, 1909.

, provision of transverse rods orbars-which tional view of a portion of the silo. a transverse sectional View taken on the line 3-3 of F1 2.

Horeb, in the county of Dane and State of is a specification.

KNUT KLEVEN OF MOUNT HOREB, WISCONSIN.

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i Specification 6r Letters Patent.

Patented May 1 1, 1969'.

Application filed July 1, 1908. Serial No. 441,377. I

To all whom it'may concem:

Be it known that I, KNUT KLEvriN, a citizen of the United States, residing at Mount Wisconsin, have invented a new and useful Silo-Door Fastener, of which the following This invention relates to silos of that general class shown and described in my former application for atent filed in the United States Patent ceon the 11th day of April 1908 under Serial No. 426501. Y a I The object of the invention is generally .to improve and simplify the construction of the silo and to provide improved means for locking the removable door sections in'closed position.

A- further ob'ect of the invention is to so arrange the loc ing members that the inner ends of the same are entirely housed within the door sections, thereby to present a smooth unobstructed surface to the ensi'lage and permit the latter to settle when filling the silo.

A further object is to reinforce and strengthen the several door sections by the form in effect a ladder so that a person may ascend or descend the silo.

A still further object of the invention is generally to improve this class'of devices soas to increase their utility, durability and efficiency. v

Further objects and advantages will ap pear in the following description, it being understood that various changes in form, proportions and minor details 'of construction may be resorted to within the scope of the ap ended claims.

n the accompanying drawings forming a part of this specification :Figure 1 is a front elevation of a silo constructed in accordance with my invention. Fig. 2 is a vertical sec-" Fig. 3is

Fig. 4 is a top plan view of one of the oor sections detached. Fig. 5 is a detail perspective View of one of the fastening devices detached.

Similar numerals of reference indicate corresponding parts in all of the figures of the drawings.

The improved silo forming the ..subject matter of the present invention includes a portion 5 preferably formed of vertical the latter.

staves arranged in cylindrical form, as shown, some of the staves being spaced apart to produce a continuous door way 6, preferably extending the entire height of the silo.

Arranged within the door way is a frame including longitudinal side members 7 spaced apart by transverse bars 8, which latter form supports for the removable door sections, in-

icated at 9. The door sections 9 are each referably formed of superposed transverse strips havin their outer faces reinforced and strengthened by vertical cleats or bars 10,

the latter being bowed outwardly and connected with the" adjacent door section by means of bolts orsimilar fastening devices 11 and 12.

Connecting the cleats or bars of the several door sections are transverse rods 13 havi-n their opposite ends flattened and provided with perforations for the reception of the bolts 11-, said rods forming in eii'ect a ladder so that a person may readily ascend or descend the silo. The inner face of each door section isinclined or beveled at ii. for enagement with the correspondingly inclined ace of the door frame 7 so that the door will snugly engage the interior wall of the silo and thus prevent the escape of fodder from The opposite ends of the longitudinal cleats 10 pre erably terminate short of the adjacent transverse edges of the door sections to form stops 15 or engagement with the adjacent transverse bars 8- of the door frame, the door sections within said frame. The up or transver e edgeof each door section is ormed: with spaced recesses in which are seated castings or sockets 16 adapted to receive suitable locking um 17 carried by the lower edge of the ad whereby the several'sections may be locked in vertical alinement with each other.

Extendingthrough the transverse bars 8 are spaced lockin bolts '18 having their outer ends threaded and theirinrrer ends provided with terminal eyes 19 adapted toreceive the free ends of. the locking;- inst-17. Engaging the threaded ends of the ol=ts 1 8- are clamping nuts 20 each provided with a handle or lever 21 by means of which the nuts may be rotated. so as to cause the was of the eyes '19to engage the pins 1"? and thus securely lock. the door sections in closed'po-v sition. Attention is here called to -the fact that the locking members 18- are disposed at thereby to assist in supportingv jacent door section, 9

the juncture of adjacent door sections, while the eyes 19v of said locking members are seated in-suitable recesses 22 formed in said door sections, whereby'the inner ends of the looking members are entirely housed within the door sections so as to present a smooth unobstructed surface to the ensilage or other fodder and thus permit settling of the latter when filling the silo. The silo is reinforced and strengthened by the provision of one or more hoops or bands 23, which latter bear against the transverse bars 8 of the door In order to lock the door in closed positionit is merely necessary to insert the terminals of the pins 17 through the eyes 19 into the adjacent sockets 16 and then rotate the clam ing nuts 20, the clamping action exerte by the eyes of the members 18 on the pin 17 serving to securely lock the door.

against accidental displacement. By extendingi the door way the entire height of the s1lo an forming the closure for the doorway in sections, access may be had to the interior of the silo at any desired height, the doorway and door. sections being so constructed as to aifordlittle or no obstruction to the passage of fodder in filling or emptying the silo. Attention is here called to the fact that the inner faces of the several door sections present a smooth unobstructed surface to the fodder throughout the height of the silo, while the transverse rods 13 form in effect a ladder by means of which a person may readily ascend the silo to manipulate the clamping nuts when releasing the door sections or securing said door sections in clOsed position.

From the foregoing description it is thought that the construction and operation of the device will be readily understood by those skilled in the art and further description thereof is deemed unnecessary.

Having thus described the invention what is claimed is:

1 A silo having a door way, a continuous series of individual door sections closing the door way, and fastening devices disposed at the meeting edges of adjacent door sections and forming a locking means for the door sections, the inner ends of the fastening devices being entirely housed within the door sections.

.5. A silo having a door way, a continuous series of individual door sections closing the door way and having their nieetin 1' aces provided with interlocking parts, and fastening devices engaging the interlocking parts of the door sections for securing said door sections in closed osition.

3. A si 0 having a door way, a continuous series of individual door sections closing the door way, bolts interposed between the meeting edges of adjacent door sections and provided with terminal eyes entirely housed within said door sections, and locking members secured to the lower edge of each door section and passing through the eyes of the adjacent bolts for engagement with the upper edge of the next succeeding door section.

4. A silo having a door way, a continuous series of individual door sections closing the door Way and each having its upper edge provided with a socket, a locking pin secured to the lower edge of each door section and adapted to enter the adjacent socket, and a fastening device disposed at the meeting edges of adjacent door sections for engagement with the pins.

5. A silo having a door way, acontinuous series of individual door sections closing the door way, threaded bolts interposed between the meeting edges of adjacent door sections and provided with terminal eyes, there being sockets formed in the upper edge of each door section, pins depending from the lower end of each door section and extending throu h the adjacent eyes l'orengagemcnt with tie sockets, and clamping nuts threaded on the bolts for clamping the eyes in engagement with the pins, said pins and eyes being entirely housed within the door sections.

6. A silo having a door way, a frame seated' in the door way and provided with transverse bars, a series of individual door sections fittlng between thetransverse bars and each provided with spaced longitudinal cleats terminating short of the opposite ends of the door section to l'orni stops for engagement with the transverse bars, rods connecting the cleats, and fastening devices disposed at the meeting edges of adj accnt door sections and formin a locking means for the door sections, t e inner ends of the fastening devices being entirely housed within the door sections.

7. A silo having a doorway, a frame seated in the door way and provided with spaced trai'isverse bars, a series of individual door 'sections fitting between the transverse bars and having their outer faces inclined for engagement with the inner face of the door frame, there being sockets in the upper edge of each door section, pins depending from the lower edge of each door section and adapted to enter the adjacent sockets, and clamping bolts extending through the transverse bars of the frame and engaging the adjacent depending locking pins.

8. A silo having a door way, a frame seated in the door way and provided with spaced transverse bars, a series of individual door 130 sections fitting between the transverse bars,

and having their upper edges provided with sockets, locking gins depending from the lower edge of eac door section and adapted to enter the adjacent sockets, spaced outwardly bowed longitudinal cleats secured to the exterior face of each door section, transverse rods connecting the cleats of each door section and having their opposite ends provided with perforations, lastening devices extending through the erforations and the adjacent longitudinal c eats, threaded bolts piercing the transverse bars and provided with ter'minaleyes for engagement with the adjacent locking pins, there being recesses.

1n nuts engaging the threaded ends of 1116' be ts for clamping the eyes in engagement with said pins;

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two w1tnesses.

KNUT KLEVEN Witnesses O. P. BERG, GILBERT NUSDELSERS. 

